Global Patent Index - EP 1455554 A2

EP 1455554 A2 20040908 - Circuit and program for processing multichannel audio signals and apparatus for reproducing same

Title (en)

Circuit and program for processing multichannel audio signals and apparatus for reproducing same

Title (de)

Schaltungsanordnung und Programm zur Verarbeitung von Mehrkanalaudiosignalen und Wiedergabevorrichtung derselben

Title (fr)

Circuit et programme traîtement des signaux audio multicanaux et dispositif de réproduction des dits signaux

Publication

EP 1455554 A2 20040908 (EN)

Application

EP 04250877 A 20040218

Priority

JP 2003055408 A 20030303

Abstract (en)

A circuit for processing multichannel audio signals, comprises a frequency characteristics correction device (101) and an output device (105). The frequency characteristics correction device (101) corrects frequency characteristics of an audio signal of a channel including an audio signal component having a predetermined frequency band, of audio signals of a multichannel comprising at least a right channel and a left channel, in accordance with correction characteristics determined based on a head related transfer function. The output device (105) mixes the audio signal component having the frequency characteristics corrected with an audio signal of the right channel and an audio signal of the left channel to generate mixed output audio signals, and outputting the mixed output audio signals as a right channel output audio signal and a left channel output audio signal. <IMAGE>

IPC 1-7

H04S 3/00

IPC 8 full level

H04R 3/12 (2006.01); H04S 3/00 (2006.01); H04S 5/02 (2006.01)

CPC (source: EP US)

H04S 3/002 (2013.01 - EP US); H04S 3/008 (2013.01 - EP US); H04S 2420/01 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1455554 A2 20040908; EP 1455554 A3 20050907; EP 1455554 B1 20110608; JP 2004266604 A 20040924; JP 4480335 B2 20100616; US 2004175001 A1 20040909; US 2009060210 A1 20090305; US 7457421 B2 20081125; US 8160260 B2 20120417

DOCDB simple family (application)

EP 04250877 A 20040218; JP 2003055408 A 20030303; US 25634508 A 20081022; US 78645504 A 20040224